Today is Earth Day. Now 41 years in existence, its origins can be traced back to Gaylord Anton Nelson, a Democratic U.S. senator from Wisconsin who held the first event on April 22nd, 1970.

Over the years, it has evolved into an annual spectacle observed in many countries that’s supposed to raise awareness about the planet’s health via environmental ad campaigns, PSAs, and common sense news segments, done by media outlets who show their support by turning their logos green. How are you celebrating?

Good news city dwellers, you’re already doing your part. The sheer act of living like insects in apartments stacked one on top of each other, using mass transit, and riding bikes to get around, makes you more of a steward than most of your suburban peers, so don’t be too hard on yourself if you didn’t plant a tree or paint your roof white, as a city dweller by default you’re also an environmentalist.